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Finding the Fourth Proportional to 245,418.30, 343,818.90 and 245,418.30

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Solution

The fourth proportional to 245,418.30, 343,818.90 and 245,418.30 is: 343,818.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,418.30 : 343,818.90 = 245,418.30 : x
  2. Step 2: Convert to fraction form
    245,418.30/343,818.90 = 245,418.30/x
  3. Step 3: Cross multiply
    245,418.30x = 343,818.90 × 245,418.30
  4. Step 4: Simplify right side
    245,418.30x = 84,379,449,945.87
  5. Step 5: Solve for x
    x = 84,379,449,945.87/245,418.30
  6. Step 6: Final answer
    x = 343,818.90

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.